1.9 1.9 rich running

[David Simson 3]

Hi,

 

I have a 1.9 litre and unable to fix a running rich problem.

 

As a matter of course I have replaced spark plugs, distributor cap, rotor arm, all leads. I have also adjusted the small screw controlling idle but my understanding is this ONLY controls idle so should make little or no difference to general running. Sure enough, it didn't. In front of you when you lift the bonnet is what looks like a black fusebox which is sealed by what looks like black bathroom sealant. I have seen videos where people have removed the lids to adjust the gears inside controlling the mixture. Seems like a reasonable idea BUT why did Peugeot seal it in the first place if the lid was meant to be removeable? Surely they'd have used screws? Having spoken to several people I've been advised not to touch the mixture gears. Peugeot set them and they're not intended to be adjusted. OK, that's all well but my car runs like **** and is thirstier than she should be. Which leads me to this post. Has anyone experienced the same problem and does anyone know how to fix it? Thanks

  

[PhilNW 47]

What exactly do you mean by "OK, that's all well but my car runs like ****"

 

eg. - Misfire, low power, lack of accleration

[Leslie green 134]

ECU temp sensor on the back of the block on a phase 2 , side of block near sad valve  on thermostat block on earlier cars can cause a car to run rich, its a 2 pin blue plug and there is a spec in the haynes for resistance at certain temps , if its faulty fuel economy is bad as its thinks the engine is still cold when warm and adds too much fuel.Its not that easy to access though .

The airflow meter you are talking about that has the sealed cover its sealed so it is waterproof as it should never really need to be opened , the main issue with those is a worn track that can cause running issues and cutting out so people move the pointer to an unworn part of the track.